Generated bindings are stale

The C# runtime's ABI version, layout hash or generated structure sizes do not match the Rust host. Script-runtime initialization is rejected before incompatible bindings can be used.

#Common causes

• Generated C# bindings were not updated after an ABI or schema change.
• The host and C# runtime were built from different engine revisions or stale artifacts.
• Exported scripts.json has a different ABI version or engine layout hash than the player.

#Fixes

• Regenerate with ARA_UPDATE_GENERATED=1 cargo test -p ara-script --test generated, then rebuild the .NET artifacts and matching Rust host.

• Restart the host with artifacts from the same revision; a default-context runtime assembly cannot be replaced by a module reload.

• For a shipping export, rebuild gameplay scripts and the player with the same Ara SDK, then export again.

• Code: ARA0921

• Constant: script::STALE_BINDINGS

• Reported by: ara-script, Ara.Runtime